What the hell is the 'Montreal Derivatives Exchange'???? ps.: I'm not asking the question because I don't know what you mean, but because it isn't called like that...
If I say CDE or even a Bourse de Montréal, I get a lot of bank stares by American millennials, haha. So... what's your solution?
It is called 'Montreal Exchange' (english name for Bourse de Montréal as you mentioned). And by the way, your pic is the old location of the Montreal Exchange. They have moved a few years ago.